The hardest known metal alloy, and the hardest known metal in general, is a type

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The top ten precious metals are Vanadium, Rubidium, Zirconium, Lithium, Glucinum, Calcium, Strontium, Terbium, Yttrium, and Erbium. Gold, Platinum, and Silver are much farther down on the list. You can find more info at: chestofbooks.com

The top ten precious metals include Gold, Platinum, Silver and Bronze. The most rare element would be Platinum, second rarest is gold and third is silver.

There are several precious metals, some worth thousands, some as cheap as silver. The top precious metals are Gold, Silver, Platinum, Iridium, Palladium, Rhenium, Rhodium, Osmium, and Ruthenium.